Improvement in coal-sifters



SANFORD ADAMS, OF BOSTON, MASSACHUSETTS.`

Letters Parent No.1o6,532, lated August 23. 1810.

IMPROVEMENT IN COAL-SIFTERS.

ThevSchedu'le referred tc? :in these Letters Patent and making part Of the same.

To al! whom it may concern:

Be it known that I, SANFORD ADAMS, of Boston, in the county fof Suffolk and State of ll/Iassachusetts, have invented'a new and useful Improvement in Goal- Silters; and I do hereby declare that the following is a full, clear, fand exact description thereof, reference being had 4to the accompanying drawing and to the letters of reference marked thereon, in which- Figure l is a vertical section through the center.

Figure 2 is a top View, with cover removed.

Figure 3 shows three sieves placed together", showing how they can be packed for storage.

Figure 4 is a side view, with a part of the side broken away to show the cogged rollers.

Figure 5 is a section of the cogged roller and casting which holds it, enlarged from the scale of the other drawing.

The nature of my invention consists in constructing a coal-sitter with a very 'large space for holding the material to be sifted, and so arranged that it can be used on a common barrel wit-hout scattering any oi the ashes.

Also. in so constructing it that it can be manufactured very cheaply, and readily be packed for transportion or storage.

Alsoin so constructing it that, when using the sieve, a.' powerful vibratory' motionjvill be` obtained to separate the ashes from the coal.

Also, in constructing and arranging `a beveled ring with the rim of the oscillating sieve, arranging it above thessifting wire ot` thesieve, so placed that, when in operation, the ashes will not adhere to or clog it or escape, but will be guided by it through the sieve directly into the receiving receptacle below.

To enablel others skilled in the art to make and usev my invention, I will proceed to describe its construction and operation.

A `is thc rim of the sieve.

B represents a barrel or any other suitable receptacle for the. ashes.

' C is the sieve, vand is attached to the sides or rim A by means of the circular wood pieces or rings D andV E, which are sawed out of the proper size, the` sieve fastened to one or both of them, and both driven into the place within the side piece or rim A, which is formed largest at the top, so that these rings will wedge in tightly when they are driven down into their proper position. An iron lining-hoot', f, mayv be riretcd onthe bot-tom edge of the rim A to stitien the lower edge, preventing it from being broken, and aid' ing as a support to the rings and sieve above. The

ot another, so that the sieves can be piled up into a very compact form for transportation or storage.

g by and fastened to the ring.

same, is beveled, as seen in iig. l, so that all the ashes on the top of the barrel.

Fig.,3 represents three siev'es placed in one pile, showing how one sieve will tit into :mother when it is necessary to store or transport any number of them.

The ring E is placed into the rim A Vin such a manner as to come below the sieve C, which is supported4 rlhe ring D, above the 'will he sitted into the barrel.

In the lower ring E cogged rollers a a a are placed, as shown in figs. 1, 2, 4, and 5, which roll on the upper edge or chimb of the barrel, or whatever is used to sift the ashes' into.

The cover 'F is formed with a. beveled edge or ring,

g, which fits closely into the top of the rim of the sieve, and keeps the ashes from iiying out when being sifted.

The lower edgeof the rim A projects downward over the chimb otthe barrel, as shown in iig. 1.

Operation..

The sieve is placed on top ot' a barrel or other suit.,-Y

able receptable, B, and is filled with ashes to be sifted.

By means of the handle e e the sieve is turned rapidly, f irst in one direction and then in the other. The ring D is so beveled that all the coal and ashes are brought in toward the center of the sieve C, and the ashes are thus prevented from falling into or outside ofrthe edge of the barrel. Thus, as the ring D Vkeeps the ashes in toward the center, the frame A ot' the sieve can be made large 'enough to surround the outside of the top edge of the barrel B, guiding the sieve and keeping it in place. By this arrangement the sieve-frame A is made larger, and will hold more ashes than it' the edge or lower part1 of the outside hoop A were made small enough to go inside of the top of the barrel, which would have to be done to preventthe -spilling of the ashes it' it were not for the ring D.

The sieve 'C is supported all around the outside edge, and, ifthe sieve gives down any, 1t will tend to throw the ashes toward the center, keeping them away from the outer edge, whereas in the coal-sitter originally patented by me the sieve was supported from the center, and, if' it `gave down any, the ashes worked to the outer edge, which tended still more to bend'the wires.

The cogged wheelsa a a., placed in the lower circular ring E, roll on the upper edge or chimb of' the barrel, and give a vertical or up-and-down motion to the sieve in addition to its rotary motion. This vertical motion is caused by the cogs of the wheels a rolling small pieces of coal, whichwould otherwise catch' in and clog the sieve, 'are tossed 11p-away from the sieve, and it is kept clear, so that the ashes sift through vvery rapidly. e

By this vertical motion There is in this sifter quite a, number of very import-ani; advantages over the kind origina-ll y patented hy nie, in which the sieve was suspended from a centa'l post, and the hoop surrounding the sieve was with the'spindle and the unnecessary Weight, and gives v place to more open sieve. Lighter wire ca n be used in making the sieve with equal strength' and more durability, as the circular ring E, upon the inner Y circumference'"of the'rim A, gives support, where the former had none.

'lhe use of smaller uire diminishes the expense and makes a more open sieve. The rim A,projectiug down outside of the barrel some half inch or more,keep's it on the barrel, while the cast-iron chairs, in which are either cog or smooth rollers, being `imbedded in thel circular wood pieces E, all rest upon the hoop' f, riveted to the rim A: This gives support to the rim, and will endure a great amount of ii'iction in t-he movement. Supported as it is, the rim A may beof the lightest material, and still he strong and very durable. The whole cover F is taken ofi', and full scope'is given for putting in ashes and for picking out the cinders. This kiudof a sifter can be used with equal advantage for siding flour, meal, beans, peas, or any like material.

What I claim as' my invention, and desire to secure by Letters Pateut-,.isl

Them-rangement and construction of the rim A, the rings D and E, the rolls a a a, the sieve C, and

SANFORD ADAMS.

Witnesses W. P. FEssENDEN, H. R. BLAKE. 

